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WeChat was developed by Tencent Holdings as a lightweight messaging platform. As it grew quickly to become the most popular messaging app in China, it added a range of products and services that sat on top that were designed to appeal to a broad range of consumers and businesses. Official accounts, WeChat payment, and online to offline features expanded its reach, but the core question was whether the company could break out from its home market and offer the rest of the world something that its competitors could not.

It took BJ Lee many years to learn how to navigate the patent minefield that was the global LED industry. When his company was first spun off from the Industrial Technology Research Institute in Taiwan, he thought the essence of a good IP strategy was to develop a technology portfolio that was different from everybody else. But in the ensuing two decades of competition and litigation, he came to appreciate some of the nuances that enabled his company to have freedom to practice. This case exposes that journey and some of the learnings.

The prescription eyeglass lens industry was complicated and highly fragmented, and even though many of the tools and techniques employed have been relatively unchanged over the last century, there was still a surprising pace of innovation. An aging population around the world meant the demand for progressive lenses was increasing rapidly, and innovations in production technology meant an evolving competitive dynamic with potentially quite different patterns of manufacturing and distribution. Are there theories that Zeiss managers can use to see clearly how industry evolution might portend shifts in the value network?